def zipkin_ot_tracer_from_args():
"""Initializes OpenZipkin from the commandline args.
"""
parser = argparse.ArgumentParser()
parser.add_argument(
'--host',
help='The OpenZipkin reporting service host to contact.',
default='localhost')
parser.add_argument('--port',
help='The OpenZipkin reporting service port.',
type=int,
default=9411)
parser.add_argument('--service_name',
help='The OpenZipkin component name',
default='TrivialExample')
args = parser.parse_args()
return zipkin_ot.Tracer(service_name=args.service_name,
collector_host=args.host,
collector_port=args.port,
verbosity=1)
import os, random, time, sys
import opentracing
import zipkin_ot
import flask
app = flask.Flask("calc_backend")
opentracing.tracer = zipkin_ot.Tracer(
service_name="demo_arch", collector_host=os.environ.get("ZIPKIN_HOST"))
files_dir = None
@app.before_request
def launch_trace():
headers = {}
for k, v in flask.request.headers.items():
headers[k] = v
parent_context = opentracing.tracer.extract(
opentracing.Format.HTTP_HEADERS, headers)
span = opentracing.tracer.start_span(operation_name="calc_service",
child_of=parent_context)
span.set_tag("span.kind", "server")
span.set_tag("component", "calc frontend service")
span.set_tag("http.url", "http://calc_backend:4570")
flask.g.span = span
import coordinate
import weather
s = socket.socket() # Create a socket object
host = socket.gethostname() # Get local machine name
port = 12345 # Reserve a port for your service.
s.bind((host, port)) # Bind to the port
s.listen(5) # Now wait for client connection.
if __name__ == '__main__':
with zipkin_ot.Tracer(
service_name=
'Weather-server', # connect opantracing to zipkin server
collector_host='localhost',
collector_port=9411,
verbosity=1) as tracer:
opentracing.tracer = tracer
while True:
c, addr = s.accept() # Establish connection with client.
print 'Got connection from', addr
while True:
data = c.recv(1024)
#print "data ", data
text_carrier = None
address = None
if not data:
break